US3005758A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for electrochemical gas analysis
Assignee: Union Carbide Corp
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Filing: 1956-02-13
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Granted: 1961-10-24
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Expires: 1976-02-13
Abstract
No abstract record available.
Inventors
- 👤 Stanford B Spracklen
- 👤 Donald N Campbell
- 👤 Charles G Fellows
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 00:37
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/416; G01N27/4162
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A METHOD FOR CONTINUOUSLY MEASURING THE CONCENTRATION OF A SELECTED CONSTITUENT IN A SAMPLE GAS MIXTURE STREAM WHICH COMPRISES PARTIALLY IMMERSING A ROTATABLE ELECTRODE IN A BODY OF REAGENT ELECTROLYTE SOLUTION SELECTED TO CHANGE IN IONIC CONTENT UPON CONTACTING SAID SELECTED CONSTITUENT THE COMPOSITION OF THE ELECTRODE BEING SUCH THAT IT IS NON-REACTIVE WITH THE SOLUTION AND THE GAS SAMPLE, ROTATING SAID PARTIALLY IMMERSED ELECTRODE AT A SUBSTANTIALLY CONSTANT SPEED TO FORM A THIN CONTINUOUS SURFACE FILM OF SAID REAGENT ELECTROLYTE SOLUTION COVERING THE UNIMMERSED SURFACE OF SAID ROTATABLE ELECTRODE, CONCURRENTLY PASSING SAID SAMPLE GAS MIXTURE STREAM IN CONTACT WITH SAID THIN CONTINUOUS SURFACE FILM OF REAGENT
Claim 2
Independent Claim
107 words
A METHOD FOR CONTINUOUSLY MEASURING THE CONCENTRATION OF A SELECTED CONSTITUENT IN A SAMPLE GAS MIXTURE STREAM WHICH COMPRISES PARTIALLY IMMERSING A ROTATABLE ELECTRODE IN A BODY OF REAGENT ELECTROLYTE SOLUTION SELECTED TO CHANGE IN IONIC CONTENT UPON CONTACTING SAID SELECTED CONSTITUENT THE COMPOSITION OF THE ELECTRODE BEING SUCH THAT IT IS NON-REACTIVE WITH THE SOLUTION AND THE GAS SAMPLE, ROTATING SAID PARTIALLY IMMERSED ELECTRODE AT A SUBSTANTIALLY CONSTANT SPEED TO FORM A THIN CONTINUOUS SURFACE FILM OF SAID REAGENT ELECTROLYTE SOLUTION COVERING THE UNIMMERSED SURFACE OF SAID ROTATABLE ELECTRODE, CONCURRENTLY PASSING SAID SAMPLE GAS MIXTURE STREAM IN CONTACT WITH SAID THIN CONTINUOUS SURFACE FILM OF REAGENT
References Cited (Backward Citations)
US1944804A
Cited
US2156693A
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US2289610A
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US2401287A
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US2517382A
Cited
US2508238A
Cited
US2585059A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-23 | 1965-04-24 | 1965-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-23 | 1969-04-24 | 1969-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-23 | 1973-04-24 | 1973-10-24 | $7700.00 | Window Closed / Lapsed |